0022819: Redesign of OpenGl driver

src/OpenGl/OpenGl_Workspace.hxx

@@ -0,0 +1,224 @@
+// File:      OpenGl_Workspace.hxx
+// Created:   20 September 2011
+// Author:    Sergey ZERCHANINOV
+// Copyright: OPEN CASCADE 2011
+
+#ifndef _OpenGl_Workspace_Header
+#define _OpenGl_Workspace_Header
+
+#include <Handle_OpenGl_Workspace.hxx>
+#include <OpenGl_Window.hxx>
+
+#include <TColStd_Array2OfReal.hxx>
+#include <Quantity_Color.hxx>
+#include <Graphic3d_TypeOfComposition.hxx>
+
+#include <Graphic3d_CView.hxx>
+#include <Aspect_CLayer2d.hxx>
+#include <Aspect_Handle.hxx>
+#include <Aspect_PrintAlgo.hxx>
+#include <Graphic3d_PtrFrameBuffer.hxx>
+#include <Image_CRawBufferData.hxx>
+
+#include <InterfaceGraphic_Graphic3d.hxx>
+#include <InterfaceGraphic_Visual3d.hxx>
+
+#include <OpenGl_tsm.hxx>
+
+#include <OpenGl_Display.hxx>
+#include <OpenGl_Matrix.hxx>
+#include <OpenGl_NamedStatus.hxx>
+#include <OpenGl_TextParam.hxx>
+
+#include <Handle_OpenGl_View.hxx>
+
+class OpenGl_AspectLine;
+class OpenGl_AspectFace;
+class OpenGl_AspectMarker;
+class OpenGl_AspectText;
+class OpenGl_FrameBuffer;
+class OpenGl_Structure;
+
+//! Reprepsents window with GL context.
+//! Provides methods to render primitives and maintan GL state.
+class OpenGl_Workspace : public OpenGl_Window
+{
+public:
+
+  //! Main constructor - prepare GL context for specified window.
+  OpenGl_Workspace (const Handle(OpenGl_Display)& theDisplay,
+                    const CALL_DEF_WINDOW&        theCWindow,
+                    Aspect_RenderingContext       theGContext);
+
+  //! Destructor
+  virtual ~OpenGl_Workspace();
+
+  void SetActiveView (const Handle(OpenGl_View)& theView) { myView = theView; }
+  const Handle(OpenGl_View)& ActiveView () const { return myView; }
+
+  //! Redraw the window.
+  void Redraw (const Graphic3d_CView& theCView,
+               const Aspect_CLayer2d& theCUnderLayer,
+               const Aspect_CLayer2d& theCOverLayer);
+
+  //! Redraw window only if needed.
+  void Update (const Graphic3d_CView& theCView,
+               const Aspect_CLayer2d& theCUnderLayer,
+               const Aspect_CLayer2d& theCOverLayer)
+  {
+    if (!myIsUpdated)
+      Redraw (theCView, theCUnderLayer, theCOverLayer);
+  }
+
+  //! Special method to perform printing.
+  //! System-specific and currently only Win platform implemented.
+  Standard_Boolean Print (const Graphic3d_CView& theCView, 
+                          const Aspect_CLayer2d& theCUnderLayer, 
+                          const Aspect_CLayer2d& theCOverLayer,
+                          const Aspect_Handle    theHPrintDC,
+                          const Standard_Boolean theToShowBackground,
+                          const Standard_CString theFileName,
+                          const Aspect_PrintAlgo thePrintAlgorithm,
+                          const Standard_Real    theScaleFactor);
+
+  void DisplayCallback (const Graphic3d_CView& theCView, int theReason);
+
+  // szvgl: defined in OpenGl_Workspace_1.cxx
+  void BeginAnimation (const Standard_Boolean theUseDegeneration,
+                       const Standard_Boolean theUpdateAM); 
+  void EndAnimation();
+  void EraseAnimation();
+
+  Standard_Boolean BeginAddMode();
+  void EndAddMode();
+  void ClearImmediatMode (const Graphic3d_CView& theCView,
+                          const Standard_Boolean theToFlush);
+  void RedrawImmediatMode();
+  Standard_Boolean BeginImmediatMode (const Graphic3d_CView& theCView,
+                                      const Standard_Boolean theUseDepthTest,
+                                      const Standard_Boolean theRetainMode);
+  void EndImmediatMode();
+  void Transform (const TColStd_Array2OfReal& theMatrix, const Graphic3d_TypeOfComposition theType);
+  void DrawStructure (const OpenGl_Structure* theStructure);
+  void BeginPolyline();
+  void EndPolyline();
+  void Draw (const Standard_ShortReal theX, const Standard_ShortReal theY, const Standard_ShortReal theZ);
+  void Move (const Standard_ShortReal theX, const Standard_ShortReal theY, const Standard_ShortReal theZ);
+  void SetLineColor (const Standard_ShortReal theR, const Standard_ShortReal theG, const Standard_ShortReal theB);
+  void SetLineType (const Standard_Integer theType);
+  void SetLineWidth (const Standard_ShortReal theWidth);
+  void SetMinMax (const Standard_ShortReal X1, const Standard_ShortReal Y1, const Standard_ShortReal Z1,
+                  const Standard_ShortReal X2, const Standard_ShortReal Y2, const Standard_ShortReal Z2);
+
+  Graphic3d_PtrFrameBuffer FBOCreate (const Standard_Integer theWidth, const Standard_Integer theHeight);
+  void FBORelease (Graphic3d_PtrFrameBuffer theFBOPtr);
+  Standard_Boolean BufferDump (OpenGl_FrameBuffer *theFBOPtr, Image_CRawBufferData& theBuffer);
+
+  //! Mark this window to be redrawn on next update.
+  void Invalidate() { myIsUpdated = Standard_False; }
+
+  void UseTransparency (const Standard_Boolean theFlag);
+  Standard_Boolean& UseZBuffer()   { return myUseZBuffer; }
+  Standard_Boolean& UseDepthTest() { return myUseDepthTest; }
+  Standard_Boolean& UseGLLight()   { return myUseGLLight; }
+
+  //// RELATED TO STATUS ////
+
+  Standard_Integer   NamedStatus;
+
+  Standard_Integer   DegenerateModel;
+  Standard_ShortReal SkipRatio;
+
+  const TEL_COLOUR* HighlightColor;
+
+  const OpenGl_Matrix* SetViewMatrix (const OpenGl_Matrix* );
+  const OpenGl_Matrix* SetStructureMatrix (const OpenGl_Matrix* );
+
+  const OpenGl_AspectLine*   SetAspectLine   (const OpenGl_AspectLine*   theAspect);
+  const OpenGl_AspectFace*   SetAspectFace   (const OpenGl_AspectFace*   theAspect);
+  const OpenGl_AspectMarker* SetAspectMarker (const OpenGl_AspectMarker* theAspect);
+  const OpenGl_AspectText*   SetAspectText   (const OpenGl_AspectText*   theAspect);
+
+  void SetTextParam (const OpenGl_TextParam* theParam) { TextParam_set = theParam; }
+
+  const OpenGl_AspectLine*   AspectLine   (const Standard_Boolean theWithApply);
+  const OpenGl_AspectFace*   AspectFace   (const Standard_Boolean theWithApply);
+  const OpenGl_AspectMarker* AspectMarker (const Standard_Boolean theWithApply);
+  const OpenGl_AspectText*   AspectText   (const Standard_Boolean theWithApply);
+
+  //// RELATED TO FONTS ////
+
+  int FindFont (const char*          theFontName,
+                const OSD_FontAspect theFontAspect,
+                const int            theBestSize = -1,
+                const float          theXScale = 1.0f,
+                const float          theYScale = 1.0f)
+  {
+    return myDisplay->FindFont (theFontName, theFontAspect, theBestSize, theXScale, theYScale);
+  }
+
+  void StringSize (const wchar_t* theText, int& theWidth, int& theAscent, int& theDescent)
+  {
+    myDisplay->StringSize (theText, theWidth, theAscent, theDescent);
+  }
+
+  void RenderText (const wchar_t* theText, const int theIs2d,
+                   const float theX, const float theY, const float theZ)
+  {
+    const OpenGl_AspectText* anAspect = AspectText (Standard_True);
+    myDisplay->RenderText (theText, theIs2d, theX, theY, theZ, anAspect, TextParam_applied);
+  }
+
+protected:
+
+  void CopyBuffers (Tint vid, int FrontToBack,
+                    Tfloat xm, Tfloat ym, Tfloat zm,
+                    Tfloat XM, Tfloat YM, Tfloat ZM,
+                    Tint flag);
+
+  virtual Standard_Boolean Activate();
+
+  // TEMPORARY!!!
+  void Redraw1 (const Graphic3d_CView& theCView, 
+                const Aspect_CLayer2d& theCUnderLayer, 
+                const Aspect_CLayer2d& theCOverLayer,
+                const int theToSwap);
+
+protected:
+
+  Handle(OpenGl_View) myView;            // WSViews - now just one view is supported
+  Standard_Boolean    myIsUpdated;       // WSUpdateState
+  Tint                myTransientList;   // WSTransient
+  Standard_Boolean    myIsTransientOpen; // transientOpen
+  Tint                myRetainMode;      // WSRetainMode
+
+  Standard_Boolean    myUseTransparency;
+  Standard_Boolean    myUseZBuffer;
+  Standard_Boolean    myUseDepthTest;
+  Standard_Boolean    myUseGLLight;
+  Standard_Boolean    myBackBufferRestored;
+
+  //// RELATED TO STATUS ////
+
+  void UpdateMaterial (const int flag);
+
+  const OpenGl_AspectLine *AspectLine_set, *AspectLine_applied;
+  const OpenGl_AspectFace *AspectFace_set, *AspectFace_applied;
+  const OpenGl_AspectMarker *AspectMarker_set, *AspectMarker_applied;
+  const OpenGl_AspectText *AspectText_set, *AspectText_applied;
+
+  const OpenGl_TextParam *TextParam_set, *TextParam_applied;
+
+  const OpenGl_Matrix* ViewMatrix_applied;
+  const OpenGl_Matrix* StructureMatrix_applied;
+
+  const TEL_POFFSET_PARAM* PolygonOffset_applied;
+
+public:
+
+  DEFINE_STANDARD_RTTI(OpenGl_Workspace) // Type definition
+  IMPLEMENT_MEMORY_OPERATORS
+
+};
+
+#endif //_OpenGl_Workspace_Header